The brand-new high density "NCF=-type compliant-bumped COG" in high resolution LCD

Abstract

Non-Conductive-Film (NCF) bonding method ensures the micro-order direct bonding between the IC electrode and circuit substrate electrode. The binding force of the applied adhesive achieves electrical connections between the bumps on the IC chip and the electrodes on the substrate. The stress analysis results are used to identify the appropriate temperature range for the given NCF bonding structure. Both analytical and experimental results demonstrate the feasibility of using the compliant bumps to achieve a high compressive stress and low as well as stable connection resistance at various environmental temperatures.